dis-, 不，非，使相反。service, 服务，效劳。即相反的服务，引申词义损害，中伤。

1. He said the protesters were doing a disservice to the nation.

他说抗议者正对国家造成危害。

2. We will never do any disservice to you [ anything to hurt you ].

我们决不会做任何对不起你们的事情.

3. The spreading of such ideas is of great disservice to the state.

散布这种思想,对国家极为不利.

4. You could do yourself a grave disservice by revealing all to a potential rival.

将一切都透露给潜在的竞争对手只会给自己帮倒忙。

5. In this it has done mankind a great disservice.

这种做法对人类危害非浅.